The truth about synthetic oils?

[Onewolf426]

 

[Talyn]

Been using full synthetic, first Mobil One, and then/now Castrol for almost 50 yrs.

Has definitely helped my engine life.

 

[Onewolf426]

Been using full synthetic, first Mobil One, and then/now Castrol for almost 50 yrs.

Has definitely helped my engine life.

Actually, they are not "true" full synthetics, according to this and what I have researched online. They are, in reality, "synthetic blends", if you go by the actual chemical makeup of them. Amsoil has TRUE synthetic oil, with the price tag to go along with it. The "blends" we are using today are far superior to the conventional oils of yesteryear, and work well for their intended purposes. However, if you are running a turbo, even though they say these "blends" are fine for your vehicle, you may be better off switching out to the true synthetics for the longevity of that turbo.

 

[Talyn]

As you say there are true synthetics, and those that take all the dino stuff out & add the extra stuff in so while they may not be absolutely true they are (full-enough) as close as you get without cost-prohibitive prices, vs. those that are labeled "partial" synthetics.

That's "true" enough for me & they've really proven that out in my engines. I also swap out filters each time even though they have filters that can handle multiple oil changes.

 

[NMEDGE]

I have used Mobil 1 for years with very good luck.

 

[Anchorite]

I use synthetic and not “blends.” Also religiously change my oil at 3000-3500 miles in my vehicles. Could probably got to 5k miles and not lose any sleep over it.

I’m sold. It’s cheap insurance to change your oil.

 

[NMEDGE]

I change oil every 6 months and rarely have I ever put 3000 miles between oil changes. Oil and filters are cheap insurance. Since both my vehicles have turbos I don't want to take any chances.

 

[Belt Fed]

Mobil 1 is for guns.

 

[NMEDGE]

Mobil 1 is for guns.

For vehicles also!

 

[OldGrunt]

Schaeffer's 9000 for my 6.7 Cummins.

 

[Pitdogg2]

I also swap out filters each time even though they have filters that can handle multiple oil changes.

I've never understood this, how do you know the filter media hasn't clogged enough to cause it to bypass the filter material completely? I knew a guy who only changed filters every third oil change, even though he spent money on good oil he could never figure out why he had such problems with his vehicles. I mentioned it and he stated it was a waste of money to throw away a perfectly good oil filter. After all the oil filter package said it was good for 10k miles.....

 

[Annihilator]

I use genuine GM synthetic in our Chevy Trax since it has a turbo also, we don’t put much miles on it, so it’s almost once a year change, I go by the oil life meter. No problems.